Machine for scarfing boiler and ship plates, cutting inclined keyways, or other purposes



J. W. BARNES.

MACHINE FOR SCARFING BOILER AND SHIP PLATES,CUTTING INCLINED KEYWAYS,0ROTHER PURPOSES.

APPLICATION FILED NOV. 17, 19I9.

1,392,549, Patented 001;. 4, 1921,.

2 SHEETS-SHEET l- J. W. BARNES. MACHINET FOR-SCARFING BOILER AND SHIPPLATES,CUTTING INCLINED KEYWAYSNR OTHER PURPOSES,

, APPLICATION FILED NOV. 17, 1919. 1,392,549..

Patented Oct. 4, 1921.

2 SHEETS-SHEET 2.

- fullmprovements in and Relating toMa-j IT D. TAT

PATENT F CB.

' TJ'QIETNV WILLIAM BARNES, or ciIEs I R-E, ENGL nD. a}

MACHINE FOR SCARFING BO LER AND snr-r 'rLA'rEs, CUTTING mo INEnKEYWAYVS,

on OTHER PURPOSES.

i Specification of Lettersatent,

Patented Oct. 4, 1921 ,Applicvation filed Kovember 17,:1919. Serial No,338,535,

To all whom it may concern Be it known that I, JOHN- Britain, andL aresident ofv-Cheshire, England, have invented certain new andrusechinesfor 'Scarfing Boiler and Ship Plates, Cutting Inclined Keyways, or otherPur poses, of which the following is -a specification.

This invention relates to a machine whereby'the' edges of boiler or shipplates or the overlapping parts of ships. stemsor thelike may be scarfedor chamferedi in order to permit of several overlapping plates or; thelike being riveted-together, the

machine being also available for other uses.

According to this invention, the machine comprises a bed plate and. avertical'bracket integral therewith havlng one or two facings. Pivotallymounted on the facings is 'plate, the latter ispositioned on the bedvslide so that a combined horizontal andvertical traverse of the secondslide may be obtained. This secondary slide carries a milling attachmentwhich is adapted to receive an end or other cutter rotated from aspindle driven through suitable gearing or otherwise from a shaft whichin turn may be driven in any suitable manner.

The invention is illustrated in the accompanying drawings, in whichFigure 1. is an end elevation andFig. 2. a front elevation of a scarfingapparatus In carrying out the invention, the machine comprises a bedplate 1, and a bracket 2 which may be integral with or bolted to the bedplate, the bracket being provided with a single facing 3, or two facings3 and 4. Mounted on one of these facings, so that it maybe pivotallyadjusted thereon, is a guid'e5. Thepivotal adjustment in the arrangementshown'is efi'ected by providing curved slots 5 in the guide engaged bygripping bolts 5". vided with undercut edges 6 upon which is mounted aslide 7 adapted to be traversed longitudinally on the guide by means ofa screw 8. The ends 5 of the guide and 2 WILLIAM- BARNES, a subject ofthe" King of Great pulley 14 and be driven by a belt.

scarfing has been done.

The guide ,5 is pro- [desired inclination relatively to the bed plate1..v This slide 7 is itself formed as a guide and carries a secondaryvertical slide horizontal and ver tical traverse of the sec ond slide 8?may be obtained. The :secondary slide 8? carriesa bracket 9 upon whichis mounted in-bearings 10 a' milling attach- 'ment 11 which is adaptedto receive in the lower socket l2 an end or other cutterrotatedfrom aspindle in the bearings 10 and. driven through bevel gearing '12 from ashaft 13-fwhich may be provided with' a The milling attachment 11is-provided with a third screw 15 so thatthe milling cutter when 'setatthe desired inclination may be traversed as required after each cut.

- Inoperation, in the case of scarfing a ment also determines'the angleof the cutting tool, and by means of the combined horizontal'andvertical screw adjustments 8,9, the cutting tool is then brought up tothe work and being rotated from its drivingmechanism, a cutflis takenoffby the feed movement of the screw 8. The cutter is then advanced bythe traversing screw feed 15 and a second parallel cut is taken off, andso on until the desired width of When scarfing ships stems the butt endsof the scarf may be truedoff by taking a final cut with the screw feed.15, and for the purpose of'insuring that the shoulder formed by this .60S? operated by a screw 9, so thata combined final cut shall be verticalto the plane of the plate; or other work, instead of to the plane of thescarfing, themain slide 7 is reset. to the normal position before thisfinal finishing out is taken off.

The bed plate 1 of the apparatus is of substantial construction uponwhich the 'plate or the like to' be scarfed is fixed, and the millingattachment 11 normally over- V which the main guide may be similarly. II p the op-j posite side of the vertical bracket.

pivoted, this second.v face being on While the; invention has been,described with reference to the operation" of scarfing boiler orthe likeplates, it would be-equally available for scarfing the overlapping partsof ships stems or forsinking keywa'ys in the coned ends of propellershafts, or in fact for any similar purpose where a cut is required'to'betaken at any desired angle.

2 1. Apparatus of the character described. comprising a bed plate, avertical bracket on the bed. plate,a guide adjustably carried by saidbracket,' duplicate Vfacings on said I claim:

adapted to be secured, a vertical bracket on the bed plate,a guideangularly adjustable with respect to said bed plate, a primary slideadjustable in one direction on the guide, a secondary slide on theprimary slide adjustable at right angles to'the direcis mounted anangularly duplicate faci-ngs on theracket, uponeither of which theadjustable guide may-be posi- 'tion of adjustment of. the primary slide,the

secondary slide overhanging thebed plate, a milling attachment carriedby said secondary slide, means for traversing the milling attachment'intwo directions, and means forrdriving the same.

3. An apparatus for scarfing boiler and ship plates, cutting inclinedkeyways, or

other purposes, comprising, a bed plate to which the work is adapted tobe'secured, a vertical bracket on the bed plate upon which adjustableguide,

tioned, a, primary slide adjustable in one direction on the guide and-asecondary slide on the primary slide adjustable" at right angles to thedirection of adjustment of the primary slide, the secondary slidecarryingi a milling attachment driven by a belt or other'means, andmeans for traversing: the milling attachment in two directions; v

In testimony whereof I afiix my signa jture in presence of twowitnesses.

, JOHN WILLIAM BARNES. V Witnesses: I Q

A. J. DAvIEs,

1 E finom sorrmu.

